diff --git a/security-through-obscurity/problem.yml b/security-through-obscurity/problem.yml
index 1058370..1e1e79c 100644
--- a/security-through-obscurity/problem.yml
+++ b/security-through-obscurity/problem.yml
@@ -4,7 +4,7 @@ hint: Maybe google would help.
 category: Cryptography
 autogen: false
 programming: false
-value: 451
+value: 450
 files:
   - encrypt.sage
   - publickey_and_ciphertext.txt